The Feliway Optimum Refill is to be used with the Feliway Optimum Diffuser. It calms cats better due to a new feline pheromone complex that helps them cope with our modern lifestyles.
ProZinc U-40 Insulin Syringes Pack of 120. ProZinc U40 Insulin Syringes with needles (29G x 1/2 inch fixed needle) for use with ProZinc 40IU/ml Insulin only.